what is cvv in debit card

The CVV (Card Verification Value) is a three- or four-digit code on a credit or debit card that provides an extra layer of security for online and phone transactions. It is also known as the CSC (Card Security Code) or CVV2. The CVV is not the same as the card's PIN and is used to prove that the cardholder is the one making the transaction. For Visa, Mastercard, and Discover cards, the CVV is a three-digit number, while for American Express, it is a four- digit number. The CVV is typically found on the back of the card, although in some cases it may be on the front. Some banks also offer dynamic CVVs, which are temporary codes that change frequently for added security